Feature:1. Interface: can make PS/2, USB, Retractable, U+P(combo).2. Resolution: 800-1600DPI.3. Key life up to 3,000,000 times, roller life up to 500,000 times.4. Compatible with windows 95, 98, 2000, Me, XP, Vista.5. Can do any brand as you require, can do any color as you like.6. Scroll wheel speed searches through documents and the table.7. Ergonomic & streamline design.
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